- ARC/ . . . . . .Advocacy & . . . .. . ... Resource . . . . . . .. ...Center . . . . . . . . . .As you travel through life. . . . . . , .Serving persons with developmental disabilities and their families in Ottawa County since 1968. ARC / Advocacy & Resource Center 665 136th Ave. # 90 Holland, MI 49424 Ph: (616) 738-8570 Fax: (616) 738-9340 E-mail: arcottawa@novagate.com What is ARC | ...www.arc-resources.org